Patent US2947773A successfully refreshed from Google Patents.
US2947773A
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Halogenated phosphorus compounds
Assignee: FMC Corp
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Filing: 1956-02-01
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Granted: 1960-08-02
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Expires: 1976-02-01
Abstract
No abstract record available.
Inventors
- 👤 Allen James Forrest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:21
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C07F9/1651; C07F9/08; C07F9/09; C07F9/091; C07F9/14; C07F9/22; C07F9/24; C07F9/2404; C07F9/2408
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
THE ALPHA-CHLORO PHOSPHATE ESTER OF THE FORMULA
Claim 2
Dependent Claim
11 words
THE PROCESS OF PREPARING AN ALPHA-CHLORO PHOSPHATE ESTER OF THE FORMULA:
References Cited (Backward Citations)
US2727058A
Cited
DE896942C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |